The title is misleading. Article says, currently location sharing is a Google Maps feature and it will become a Google Play Services feature, not an Android feature.
Google Play Services is NOT the only way you can use Android.
Please correct me if I'm wrong I haven't used Google Maps nor Play Services for years. MicroG is good enough for me.
Yes, the overlap between privacy conscious people and deliberately non GMS users are very big.
I read the article because I was interested how they would do it, and how I can disable it. I was just disappointed, that there is no magic, just lazy tech writers are mixing up different things again.